filesystem-2.4.43-1.fc16.x86_64 still owns /selinux .
That mount point has moved to /sys/fs/selinux where magic happens, and it should no longer be owned by the filesystem package.
Thanks for report, filesystem-2.4.44-1.fc16 no longer owns /selinux, it was already reported in #726528. Closing DUPLICATE.
*** This bug has been marked as a duplicate of bug 726528 ***